Source : Webster's Revised Unabridged Dictionary (1913)

Coelacanth \C[oe]l"a*canth\ (? or ?), a. [Gr. ? hollow + ?
   spine.] (Zo["o]l.)
   Having hollow spines, as some ganoid fishes.

Source : WordNet®

coelacanth
     n : fish thought to have been extinct since the Cretaceous
         Period but found in 1938 off the coast of Africa [syn: {Latimeria
         chalumnae}]